Re: Cycle Counting--Too Many

"Jon Kirwan [email protected] [msp430]" <[email protected]> Fri, 18 Sep 2015 09:55:46 -0700
Newsgroups gmane.comp.hardware.texas-instruments.msp430.discuss
Organization Infinite Factors
Message-ID <[email protected]>
On Fri, 18 Sep 2015 09:44:06 -0500, you wrote:

> But, Jon's SLAA024 has this:
>
> If the interrupt is requested during the low power modes 3
> or 4, then additional two cycles are needed.

Your discovery, here, of the two additional cycles for the
interrupt accounts exactly for the 22 vs 20 cycles regarding
the LED itself.

and, the table on page 9-24, section 9.3.1, that I earlier
also pointed out on SLAA0024 which makes it explicit in my
own view that one of your instructions requires 5 cycles, not
4 ...

It looks like together we may have accounted for three of the
four cycles you are seeing.

Not perfect. But not bad. Narrowing in on the observations,
at least.

Jon


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Posted by: Jon Kirwan <[email protected]>
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